Carl steffen



(No Model.)

' G. STEPFEN.

GENTRIPUGAL MACHINE. No. 489,643. Patented Jan. 10, 1893..

INVENTOH WITNESSES.

Max 41 11,? f dmf By ATTORNEYS UNTTED STATES PATENT Trice.

CARL STEFFEN, OF VIENNA, AUSTRIA-HUN GARY.

CENTRIFUGAL MACHINE.

SPECIFICATION forming part of Letters Patent No. 489,643, dated January10, 1893.

Application filed August 8,1888. Serial No. 281,918. (No model.)Patented in Germany June 1338,110- 1 To aZZ whom it may concern:

Be it known that I, CARL STEFFEN, of No. 2 Heugasse, in the city ofVienna, Austria- Hungary, have invented certain new and usefulImprovements in the Construction of Gentrifugal Machines for TreatingSugar in Loaf Form, of which I declare the following to be aspecification.

The invention has been patented to me in Germany, No. 49,120, dated June16, 1888.

This invention relates to the construction of a centrifugal machine fortreating sugar in loaf form.

The well known centrifugal machines for driving fluid out of sugarloaves are all so constructed that the loaf mold is placed with its tipon the bottom of the drum, whereby only a relatively small number ofmolds can be placed in the said drum, which has the disadvantage thatsuch centrifugal machines prove expensive in comparison with the workdone by the same.

The construction of my improved centrifugal machine is such that theloaf molds need not be placed with their apexes on the bottom of andwithin the rotary drum, but are inserted in the lattice like orperforated wall of the said drum and are so retained in the orifices orborings of the same and between the same and the outer stationary mantleof the said centrifugal machine that the periphery of the drum isutilized to the fullest extent for receiving a large number of loafmolds thus producing an enormously increased capacity in comparison withthe centrifugal machines now in use.

In the accompanying drawings Figure 1 is a vertical section of a part ofone of my centrifugal machines. Fig. 1 represents a modified arrangementof the openings or orifices in the rotary drum for receiving the loafmold. Fig. 2 is a vertical section on an enlarged scale of a conical anda cylindrical bearing for retaining the loaf molds in the drum ofcentrifugal machines of larger diameter. Figs. 3 and 4 representbearings for the loaf molds for centrifugal machines of medium diameter,also on an enlarged scale.

A is the rotary drum which receives its mo tion from the driving shaftor and is provided in its periphery with suitable bearings for receivingthe loaf molds B. The bearings represented in the accompanying drawings,or any other suitable bearings may be employed.

O is the outer stationary curb surrounding the rotary drum and the loafmolds, the bottom of which is inclined downward toward the periphery andis provided with a suitable tube or pipe b for leading off the fluidsaccharine mass passing off from the sugar in the molds.

Various forms of bearings for theloaf molds are represented in Figs. 2,3, and 4. Each of the loaf molds is provided with a ring B which iseither riveted to the mold (Fig. 3),

conically driven onto old molds (Fig. 4), attached to the mold in othersuitable manner, or made of one piece with the same in order to securelyhold the molds in their bearings when subjected to centrifugal force indriving the liquor out of theloaf contained in the molds B. The bearingsfor the loaf molds B in the wall of the drum of the centrifugal machinecan be made by fitting a conical or cylindrical piece of tube a into theopenings in the said drum substantially as shown in Fig. 4.

For drums of larger diameter I prefer the construction represented inFig. 2, according to which strong wroughtiron ringsD are fixed aroundthe openings in the drum in order to avoid a rupture of the same whenthe drum is rotated. The loaf molds are held by cylindrical or conicalpieces of tubing a similar to those shown in Fig. 4, said pieces oftubing having preferably their bearing against the strong rings D.

Centrifugal machines constructed in this manner can not only be employedfor drivvided Witha series of perforations in its periphery, sleeves afitting said perforations and held therein against the centrifugalaction, said sleeves having cone shaped openings and the conical molds Bhaving a shoulder overlapping the end of the sleeve, substantially asdescribed.

In Witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

CARL STEFFEN.

Witnesses:

13. R01, ANTHONY STEFFEN.

